3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $bObj; public function __construct() { $this->bObj = new B($this); } } class B { private $owner; public function __construct($owner) { $this->owner = $owner; } } var_dump(memory_get_usage()); $aObj = new A(); var_dump(memory_get_usage()); unset($aObj); var_dump(memory_get_usage()); // memory uncleared!!!

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.2.00.0060.00619.22
7.1.70.0140.00017.15
7.1.60.0050.00519.27
7.1.50.0030.01716.96
7.1.00.0070.07322.51
7.0.200.0060.01216.43
7.0.140.0000.07322.00
7.0.100.0130.05319.95
7.0.90.0100.04020.00
7.0.80.0070.04319.96
7.0.70.0030.04019.88
7.0.60.0130.04020.03
7.0.50.0070.04320.32
7.0.40.0130.03320.01
7.0.30.0030.05020.11
7.0.20.0070.04020.14
7.0.10.0100.03320.02
7.0.00.0070.03720.04
5.6.280.0030.07320.87
5.6.250.0030.05720.51
5.6.240.0070.05020.75
5.6.230.0070.08720.68
5.6.220.0030.04020.65
5.6.210.0000.05020.63
5.6.200.0070.04021.14
5.6.190.0100.03721.00
5.6.180.0070.04021.18
5.6.170.0070.05321.06
5.6.160.0030.04721.17
5.6.150.0030.03720.95
5.6.140.0030.04020.96
5.6.130.0100.08021.04
5.6.120.0000.08720.96
5.6.110.0100.07321.04
5.6.100.0170.05721.07
5.6.90.0100.08020.91
5.6.80.0130.08020.44
5.6.70.0070.07020.40
5.6.60.0100.07020.38
5.6.50.0230.06320.34
5.6.40.0130.08020.50
5.6.30.0100.07320.36
5.6.20.0130.05320.38
5.6.10.0030.06720.32
5.6.00.0000.06320.42
5.5.380.0100.03320.52
5.5.370.0070.06320.52
5.5.360.0030.04020.34
5.5.350.0030.04020.43
5.5.340.0030.04720.65
5.5.330.0130.03020.87
5.5.320.0030.03720.89
5.5.310.0170.03020.64
5.5.300.0100.05320.86
5.5.290.0030.04020.91
5.5.280.0000.08020.89
5.5.270.0030.08720.79
5.5.260.0070.08720.75
5.5.250.0130.07020.74
5.5.240.0070.08020.03
5.5.230.0070.07320.25
5.5.220.0000.05320.27
5.5.210.0030.08320.30
5.5.200.0070.08320.28
5.5.190.0130.07020.28
5.5.180.0100.06720.25
5.5.160.0070.08020.19
5.5.150.0130.07020.23
5.5.140.0030.09020.17
5.5.130.0030.08320.21
5.5.120.0030.08020.23
5.5.110.0200.03720.19
5.5.100.0170.03720.14
5.5.90.0170.06320.11
5.5.80.0100.07720.14
5.5.70.0000.08020.11
5.5.60.0130.06320.09
5.5.50.0100.08020.09
5.5.40.0130.07020.11
5.5.30.0030.08020.15
5.5.20.0170.04320.04
5.5.10.0070.03720.04
5.5.00.0100.06320.03
5.4.450.0000.04719.36
5.4.440.0130.07019.55
5.4.430.0130.06719.44
5.4.420.0100.04319.45
5.4.410.0200.06719.23
5.4.400.0070.07718.88
5.4.390.0130.07019.23
5.4.380.0030.08318.87
5.4.370.0030.07019.14
5.4.360.0100.06719.04
5.4.350.0000.05019.16
5.4.340.0070.07019.02
5.4.320.0100.08019.03
5.4.310.0070.07719.03
5.4.300.0100.07319.15
5.4.290.0070.04018.86
5.4.280.0070.05719.13
5.4.270.0100.05719.20
5.4.260.0070.07019.22
5.4.250.0130.06019.04
5.4.240.0200.06319.22
5.4.230.0070.07719.05
5.4.220.0070.07718.89
5.4.210.0100.07719.08
5.4.200.0000.04319.15
5.4.190.0070.03719.04
5.4.180.0030.07319.04
5.4.170.0070.08018.91
5.4.160.0130.07319.07
5.4.150.0130.08319.07
5.4.140.0070.06316.39
5.4.130.0130.06716.46
5.4.120.0070.06716.56
5.4.110.0170.06016.52
5.4.100.0170.06016.37
5.4.90.0030.04016.49
5.4.80.0070.06716.44
5.4.70.0030.07716.36
5.4.60.0000.04316.42
5.4.50.0070.07016.26
5.4.40.0030.07316.54
5.4.30.0100.06316.47
5.4.20.0070.05316.36
5.4.10.0100.05016.24
5.4.00.0100.07315.90
5.3.290.0100.07714.60
5.3.280.0070.07314.60
5.3.270.0070.07714.63
5.3.260.0000.04714.71
5.3.250.0070.08014.56
5.3.240.0100.03714.70
5.3.230.0030.08014.74
5.3.220.0130.03714.55
5.3.210.0070.07314.63
5.3.200.0070.07714.45
5.3.190.0030.07014.56
5.3.180.0100.06714.50
5.3.170.0100.03714.53
5.3.160.0000.03714.50
5.3.150.0130.05714.58
5.3.140.0070.06314.61
5.3.130.0030.04314.48
5.3.120.0030.03714.64
5.3.110.0030.08014.61
5.3.100.0030.03314.05
5.3.90.0070.05713.97
5.3.80.0000.07713.95
5.3.70.0030.07714.04
5.3.60.0100.06313.91
5.3.50.0070.05313.95
5.3.40.0170.05014.02
5.3.30.0070.07313.99
5.3.20.0130.06713.73
5.3.10.0070.07313.71
5.3.00.0100.07013.67
5.2.170.0000.06711.21
5.2.160.0030.06711.15
5.2.150.0030.03311.04
5.2.140.0070.06011.08
5.2.130.0100.04011.16
5.2.120.0030.03011.16
5.2.110.0030.05711.04
5.2.100.0070.06011.17
5.2.90.0070.05710.99
5.2.80.0100.06011.08
5.2.70.0070.06311.21
5.2.60.0100.04310.98
5.2.50.0000.05711.05
5.2.40.0070.05311.11
5.2.30.0030.06310.90
5.2.20.0100.05310.84
5.2.10.0100.05310.97
5.2.00.0070.06010.57
5.1.60.0070.05010.09
5.1.50.0030.05310.06
5.1.40.0070.0439.83
5.1.30.0130.04310.41
5.1.20.0030.03010.37
5.1.10.0070.05010.19
5.1.00.0000.06310.18
5.0.50.0070.0438.76
5.0.40.0030.0438.76
5.0.30.0070.0538.76
5.0.20.0030.0478.76
5.0.10.0070.0378.76
5.0.00.0070.0478.76
4.4.90.0000.0378.76
4.4.80.0000.0408.76
4.4.70.0030.0378.76
4.4.60.0000.0338.76
4.4.50.0030.0278.76
4.4.40.0030.0538.76
4.4.30.0030.0338.76
4.4.20.0030.0338.76
4.4.10.0030.0338.76
4.4.00.0030.0508.76
4.3.110.0100.0308.76
4.3.100.0100.0278.76
4.3.90.0030.0338.76
4.3.80.0030.0478.76
4.3.70.0070.0308.76
4.3.60.0000.0338.76
4.3.50.0030.0308.76
4.3.40.0000.0538.76
4.3.30.0070.0278.76
4.3.20.0000.0378.76
4.3.10.0000.0208.76
4.3.00.0030.0338.76

preferences:
30.78 ms | 401 KiB | 5 Q